ITC Reefculture PARwisePARwise is a unique light meter with the ability to measure spectrum. It can be used underwater and in air. It gives you all of the relevant lighting measurements required to make informed decisions. *Requires Chrome Browser to access PARwise web based app. Achieve Accurate Light Settings with the PARwise Aquarium Light Meter Smart Submersible Quantum (PAR) Sensor PARwise is ITC Reefculture's latest tool which ends the question of what setting the